I find them rather stupid (for such smart people) on the Chequers cherry-pick.
They seem to think that the EU should cave in, simply on the basis that May can't compromise any further (that is true, but is not the EU's problem).

Finding a Brexit that May can sell to her Parliament is an impossible task anyway, and it is certainly not worth sacrificing the four freedoms to attempt it.

It is rightly acknowledged that people of faith have no monopoly of virtue
- Queen Elizabeth II